Ghost sighting: first Southeast Asian record of the ghost spider family Anyphaenidae, describing a new Rathalos species from Java, Indonesia

A new species of bamboo-associated ghost spider, Rathalos inagami Dhiya’ulhaq & Dwikelana sp. nov., is described from Java, Indonesia, based on male and female specimens. The species is diagnosed by distinct genitalic characters, including a four-lobed median apophysis in males and a wide triangular epigynal plate with strongly S-shaped copulatory ducts in females. This constitutes the first record of the family Anyphaenidae and the genus Rathalos from Southeast Asia, thereby extending the known distribution of the group.